Which of the following trends in nucleophilicity are correct?
I.Everything else being equal,a negatively charged nucleophile will react faster than a neutral one.
II.Generally,species containing elements of high electronegativity are good nucleophiles.
III.Anionic nucleophiles are more reactive in polar and aprotic solvents than in polar and protic solvents.
IV.Generally,nucleophilicity is increasing with the increase in size of an atom.
V.Bulky groups adjacent to the nucleophilic atom enhance the nucleophilicity and reactivity of the species.
A)I,II,III,and V
B)II,III,IV and V
C)I,II and IV
D)II,III and V
E)III,IV and V

Question

Quizplus · Accepted Answer

Explanation:I. True, because the negative charge on the nucleophile makes it more reactive.II. False, because species containing elements of high electronegativity are poor nucleophiles.III. True, because anionic nucleophiles are more reactive in polar and aprotic solvents than in polar and protic solvents.IV. False, because nucleophilicity is generally decreasing with the increase in size of an atom.V. False, because bulky groups adjacent to the nucleophilic atom hinder the nucleophilic attack and decrease the reactivity of the species.

Which of the Following Trends in Nucleophilicity Are Correct